Bumping-post.



110.882,14?. l PATENTBD 111111.17, 1908.

G; HOPSON.

BUMHNG POST.

APILIGATION PILEDAJULY l, '1907.

Snowdon PATENT OFFICE.

GEORGE HOPSON, Ol? DICKSON, TENNESSEE.

BUMPING-POST.

Application filed July 1. 1907.

To all whom it may concern:

Be it known that l, Geenen HoPsoN, a citizen of the UnitedStates,residingI at Dickson, in the county of Dickson and State ol Tennessee,have invented new and useful Improvements in Bumping-Posts, et which thefollowing is a specification.

This invention relates to lnlmping-posts.

The object of the invention is to provide an apparatus of this characterwhich shall be thoroughly effective in receiving and absorbing ars dueto impact between it and a railway car, and in such manner that nodamage will accrue to either from a blow. Furthermore, 'to construct andassemble the parts of the post in such manner as that they shall be bestadapted for resisting strains, and for remaining in operative conditionfor an extended period, irrespective ol atmospheric or other conditions.

With the above and other objects in view, as will appear as the natureoi the invention is better understood, the same consists in the novelconstruction and combination oi parts of a bumpingpost as will behereinafter fully described and claimed.

ln the accompanying drawings forming a part of this specification and inwhich like characters of reference indicate corresponding parts, Figure1 is a view in perspective of a bumping-post constructed in accordancewith the present invention. Fig. 2 is a top plan view. Fig. 3 is aAliront elevation.

The bumping-post embodies a base comprising two sill beams 1 and Zconnected near their forward ends by an interposed cross beam 3 and neartheir rear ends by a superposed cross beam a. Secured, in this instance,eXteriorly o'l the sill beams are two standards or upright-s 5 which arestayed and rendered rigid by pairs of angularl y disposed brace bars 6and 7 which are secured respectively to the sill beams and to the upperportions of the uprights. To the front edges of the uprights are securedtwo guide' bars S and Q that not only subserve the vfunction that theirnames indicate7 but also the lurther function of bracing the uprightsagainst liability oi yielding to lateral strains. Each of these guidebars is provided with an oriliee in which work slide rods 10 that aresecured in any suitable manner to a bumper or bull'er 11. Secured to thebuiler v11 is a plunger 12,

l rear portion oi which is provided with e bars 13 that are adapted towork in Specification of Letters Patent.

Patented March 17, 1908.

Serial No. 381,685.

orifices in a guide bar 14 secured betwe n the rear brace bars, and heldagainst liability oi'` yielding to downward pressure by a pair or'uprights 15 rigidly secured to the sill beams 1 and 2 and to the bracebars. T he guide bar 141 is further braced against liability of yieldingto impact by an angularly disposed brace bar 16, one end oi" which issecured in any suitable manner to the guide bar 14 and the other end tothe cross beam 4.

Mounted upon the two sets ol: slide bars 10 and 13, and adapted toengage respectively with the bu'll`er and. the guide bars 8 and 9 andrear portion of the plunger and guide bar 11 are coiled springs 17,which may be constructed to present any desired resistance to shocks,whereby to render the apparatus thoroughly ellicient in use.

ln order to guide the buil'er in movements, and also to relieve strainfrom the slide bars and the parts with which they coact, the lower endoli' the bull'er is provided with ajlin 1S that is adapted to engage agroove 19 in a bar 2O secured respectively to the cross beams 3 and 4.It will be seen by reference to F ig. 3 that the coaction between the[in 18 and the groove 19 will be such that any tendency on the part ofthe plunger' to have lateral movement as from strains or shocks will bepositively precluded so that lighter slide bars may be employed thanwould otherwise be required.

As shown in Fig. 2, the rear end of the plunger is bilurcated to lormtwo arms, each oi which is adapted to carry one of the slide bars 13,and this arrangement is adapted lor the purpose el reducing weight olthe plunger, but it will be apparent that this is not essential, as theplunger may be made solid throughout and still be in the scope ol` theinvention.

lt will be seen from the foregoing description that although theimprovements herein defined are simple in character, that they willcooperate in the production ol a thorougly e'llicient bumping-post, andfurther that provision is made whereby destructive strains will beprevented.

' That l claim is:

1. A bumping-post comprising a base, uprights carried thereby, guidebars carried by the uprights and provided with openings, a

l plunger carrying slide bars engaging openings in one ol' the guidebars, a buil'er carried by the plunger and having slide bars to engagethe openings in the other guide bars, and springs carried by the slidebars to retain the bumper in yielding position.

2. A bumping post Comprising a base, guide bars su ported upon the baseIa springoontrolled pfiinger Carrying slide bars extending through one ofthe guide bars, and a spring-controlled buffer carried by the plungerand having slide bars extending through the other of the guide bars.

3. A bumping post comprising guide bars, supporting means therefor, oneof said guide bars arranged forwardly of the other, a plunger carryingslide bars extending through the rearward guide bar, a buffer carried bythe plunger and having slide bars extending through the forward guidebar, and oompression springs mounted upon the slide bars.

4. A bumping post comprising a base, guide bars supported upon the base7a springoontrolled plunger carrying slide bars extending through one ofthe guide bars, a

upon the rearward extensions of the plunger and the rearward extensionsof the buffer, combined with supporting means.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE HOPSON. Witnesses:

WILL HALL, B. G. PETTY.

